5657569920 has 96 divisors (see below), whose sum is σ = 19536316020. Its totient is φ = 1508683776.

The previous prime is 5657569901. The next prime is 5657569921. The reversal of 5657569920 is 299657565.

It is a happy number.

5657569920 is a `hidden beast` number, since 5 + 6 + 57 + 569 + 9 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5291689536 + 365880384 = 72744^2 + 19128^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (5657569921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485349 + ... + 496868.

Almost surely, 2^5657569920 is an apocalyptic number.

It is an amenable number.

5657569920 is an abundant number, since it is smaller than the sum of its proper divisors (13878746100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5657569920 is a wasteful number, since it uses less digits than its factorization.

5657569920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982242 (or 982227 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 54.

The square root of 5657569920 is about 75216.8193956644. The cubic root of 5657569920 is about 1781.8725738069.

The spelling of 5657569920 in words is "five billion, six hundred fifty-seven million, five hundred sixty-nine thousand, nine hundred twenty".